diff --git a/IDE/WIN/wolfssl-fips.vcxproj b/IDE/WIN/wolfssl-fips.vcxproj
index ebdf4fc28..f7a23dd18 100644
--- a/IDE/WIN/wolfssl-fips.vcxproj
+++ b/IDE/WIN/wolfssl-fips.vcxproj
@@ -291,6 +291,7 @@
     <ClCompile Include="..\..\wolfcrypt\src\integer.c" />
     <ClCompile Include="..\..\src\internal.c" />
     <ClCompile Include="..\..\src\wolfio.c" />
+    <ClCompile Include="..\..\wolfcrypt\src\kdf.c" />
     <ClCompile Include="..\..\src\keys.c" />
     <ClCompile Include="..\..\wolfcrypt\src\logging.c" />
     <ClCompile Include="..\..\wolfcrypt\src\md5.c" />
diff --git a/IDE/WIN10/wolfssl-fips.vcxproj b/IDE/WIN10/wolfssl-fips.vcxproj
index 4a1d44fe0..329d9e5f3 100644
--- a/IDE/WIN10/wolfssl-fips.vcxproj
+++ b/IDE/WIN10/wolfssl-fips.vcxproj
@@ -260,6 +260,7 @@
     <ClCompile Include="..\..\wolfcrypt\src\integer.c" />
     <ClCompile Include="..\..\src\internal.c" />
     <ClCompile Include="..\..\src\wolfio.c" />
+    <ClCompile Include="..\..\wolfcrypt\src\kdf.c" />
     <ClCompile Include="..\..\src\keys.c" />
     <ClCompile Include="..\..\wolfcrypt\src\logging.c" />
     <ClCompile Include="..\..\wolfcrypt\src\md5.c" />
diff --git a/wolfssl.vcxproj b/wolfssl.vcxproj
index a02d696da..66b126985 100644
--- a/wolfssl.vcxproj
+++ b/wolfssl.vcxproj
@@ -314,6 +314,7 @@
     <ClCompile Include="wolfcrypt\src\hmac.c" />
     <ClCompile Include="wolfcrypt\src\idea.c" />
     <ClCompile Include="wolfcrypt\src\integer.c" />
+    <ClCompile Include="wolfcrypt\src\kdf.c" />
     <ClCompile Include="wolfcrypt\src\logging.c" />
     <ClCompile Include="wolfcrypt\src\md2.c" />
     <ClCompile Include="wolfcrypt\src\md4.c" />